gettxoutproof

gettxoutproof ["txid",...] ( "blockhash" ) Returns a hex-encoded proof that "txid" was included in a block. NOTE: By default this function only works sometimes. This is when there is an unspent output in the utxo for this transaction. To make it always work, you need to maintain a transaction index, using the -txindex command line option or specify the block in which the transaction is included manually (by blockhash). Arguments: 1. txids (json array, required) The txids to filter [ "txid", (string) A transaction hash ... ] 2. blockhash (string, optional) If specified, looks for txid in the block with this hash Result: "str" (string) A string that is a serialized, hex-encoded data for the proof.

Signature

gettxoutproof(txids: array, blockhash?: string) → any

Code samples

curl --user "$RPC_USER:$RPC_PASS" \
  --data-binary '{"jsonrpc":"1.0","id":"docs","method":"gettxoutproof","params":[[],"\"<blockhash>\""]}' \
  -H 'content-type: text/plain;' \
  http://127.0.0.1:8332/

import requests
r = requests.post(
    "http://127.0.0.1:8332/",
    auth=("$RPC_USER", "$RPC_PASS"),
    json={
        "jsonrpc": "1.0",
        "id": "docs",
        "method": "gettxoutproof",
        "params": [[], "\"<blockhash>\""],
    },
    timeout=30,
)
print(r.json())

const res = await fetch("http://127.0.0.1:8332/", {
  method: "POST",
  headers: {
    "content-type": "application/json",
    "authorization": "Basic " + btoa(`${process.env.RPC_USER}:${process.env.RPC_PASS}`),
  },
  body: JSON.stringify({
    jsonrpc: "1.0",
    id: "docs",
    method: "gettxoutproof",
    params: [[],"\"<blockhash>\""],
  }),
});
console.log(await res.json());

Parameters

Name	Type	Req.	Description
txids	`any[]`	yes	The txids to filter [ "txid", (string) A transaction hash ... ]
blockhash	`string`	—	If specified, looks for txid in the block with this hash

Result

Type: any

"str" (string) A string that is a serialized, hex-encoded data for the proof.

Source: services/core-node/bcore/src/rpc/txoutproof.cpp:23

C++ symbol: gettxoutproof

Code samples

curl --user "$RPC_USER:$RPC_PASS" \
  --data-binary '{"jsonrpc":"1.0","id":"docs","method":"gettxoutproof","params":[[],"\"<blockhash>\""]}' \
  -H 'content-type: text/plain;' \
  http://127.0.0.1:8332/

import requests
r = requests.post(
    "http://127.0.0.1:8332/",
    auth=("$RPC_USER", "$RPC_PASS"),
    json={
        "jsonrpc": "1.0",
        "id": "docs",
        "method": "gettxoutproof",
        "params": [[], "\"<blockhash>\""],
    },
    timeout=30,
)
print(r.json())

const res = await fetch("http://127.0.0.1:8332/", {
  method: "POST",
  headers: {
    "content-type": "application/json",
    "authorization": "Basic " + btoa(`${process.env.RPC_USER}:${process.env.RPC_PASS}`),
  },
  body: JSON.stringify({
    jsonrpc: "1.0",
    id: "docs",
    method: "gettxoutproof",
    params: [[],"\"<blockhash>\""],
  }),
});
console.log(await res.json());